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It all started about 7 a.m. when the man arrived at the apartment building at 4725 NW Seventh St. where his wife and their three children lived, Reyes said. The couple married 19 years ago and had recently separated.

At some point, the couple began arguing in a hallway in a common area on the building’s first floor.

“The man grabs a knife and stabs her multiple times,” Reyes said.

The couple’s children -- ages 18, 9 and 7 -- were inside the fourth-floor apartment when the stabbing took place and do not appear to have been witnesses.

The man then drove to his own apartment, an efficiency behind a home at 3675 NW First St. He attempted to commit suicide with a shotgun.

The couple has a history of domestic violence, said Reyes, who could not immediately provide more details.

Several of the woman’s neighbors said they don’t know the family because they’d recently moved in. One man said that blood covered the walls of the first-floor hallway and the building’s elevator.

Hours after the attack, the couple’s children remained in the apartment. Family members waiting outside told el Nuevo Herald they would not comment.

Few neighbors knew much about the man, either. One woman said he drove a tan-colored SUV, was quiet and greeted her each morning.